Next question- - - -do those numbers represent "theoretical" or actual compression? A change in cam timing could account for the extra quarter point if the figures reflect actual compression pressures. I've got a 100CC burette on order, so one day soon I'm going to be doing some "measurin' an' cypherin' " on the 216 head. I might do some checking on the 235 and 261 heads I've got as well.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!